got a few more sets done. Wasn't sure if I was liking them until I put them all together and decided that looked fine.
I selected the background colors to match the KF fabric I have. Interesting to realize they were almost all muted colors. I did have a true blue, red and green, but pulled them out as they didn't blend as well with the others. Then I got concerned I may run out, since some of these I've got closer to a 1/4". However I only need 5-6 sets of each background and based on what I've already used, that should not be a problem. After all, even a 1/4" yard of 16 colors is 4 yards!